ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTR............................JDIM350 (Ver 2.1 Jan 2001) 1620000/01217761EUROPEAN PATENT APPLICATIONA320050112EP01128764.620011203EnEnEn200039112520001222JP20050112200502200206262002267 7H 04B 7/06 A 7H 04B 1/707 BdeCDMA-Kommunikationsgerät für Übertragung mit adaptiven GruppenantennenenCDMA communication terminal for communication with adaptive array antenna devicefrTerminal de communication à AMDC pour la communication avec un dispositif adaptatif à reseau d'antennes1Denso Corporation0021149456ND15101-1, Showa-choKariya-city, Aichi-pref., 448-8661JPMorita, Hideyukic/o Nippon Soken,Inc., 14 Iwaya, Shimohasumi-choNishio-hsi, Aichi-ken 445JPHattori, Toshihiroc/o Nippon Soken,Inc., 14 Iwaya, Shimohasumi-choNishio-hsi, Aichi-ken 445JPTsukamoto, Akirac/o DENSO CORPORATION, 1-1 Showa-choKariya-city, Aichi-pref.,448-8661JPWinter, Brandl, Fürniss, Hübner, Röss, Kaiser, Polte Partnerschaft00100051Patent- und Rechtsanwaltskanzlei Alois-Steinecker-Strasse 2285354 FreisingDEATBECHCYDEDKESFIFRGBGRIEITLILUMCNLPTSETRALLTLVMKROSI20050112200502

A CDMA communication system comprises a base station (10) and a mobile station (20). In the mobile station (20), a pilot demodulator (28) demodulates first and second pilot signals by reception path using antenna pilot demodulators (280, 281,..., 28n). An antenna phase difference calculator (29) determines phase difference Angle(n) for the first and second pilot signals on each reception path. By vector-adding phase difference Angle(1), Angle(2), ... , Angle(n), average Angle_a is determined as the average phase difference Angle(1), Angle(2), ... , Angle(n). This average Angle_a is used as the phase difference data for a feedback control in the base station (10).